[Entomology • 2025] Protohermes sirindhornae • A New Species and New Records of the Dobsonfly Genus Protohermes van der Weele, 1907 (Megaloptera: Corydalidae: Corydalinae) from Thailand

 

Protohermes sirindhornae 

Piraonapicha, Chomphuphuang & Liu, 

in Piraonapicha, Chomphuphuang, Wayo, Tu, Hayashi et Liu, 2025.  

แมลงช้างกรามโตเทพรัตน์  ||  DOI: doi.org/10.58837/tnh.25.8.267194 

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Abstract

The dobsonfly genus Protohermes van der Weele, 1907 is the most diverse genus within the family Corydalidae of the order Megaloptera. In the present study, we describe a new species of Protohermes, namely Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov., and report three additional species newly recorded from Thailand: P. cangyuanensis Yang & Yang, 1988, P. impunctatus Liu, Hayashi & Yang, 2008, and P. striatulus Navás, 1926. These findings are based on an integrative approach that combines both morphological and molecular data. A key to the males of Thai Protohermes species is provided.

Keywords: Neuropterida, aquatic insects, freshwater ecosystems, molecular identification, COI

Habitus photo of Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov. 
A. Male (Holotype); B. Female (Paratype). Scale bar = 1 cm.

Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov. living specimens, dorsal  view.
A. Male; B. Female. Scale bars = 1 cm.

Male genitalia of Protohermes sirindhornae Piraonapicha, Chomphuphuang & Liu, sp. nov. (Holotype from Thailand).
A. Dorsal view; B.Ventral view; C. Caudal view; D. Ectoproct in caudal view. Scale bar = 1 mm.

Kanyakorn Piraonapicha, Narin Chomphuphuang , Kanuengnit Wayo, Yuezheng Tu, Fumio Hayashi and Xingyue Liu. 2025. A New Species and New Records of the Dobsonfly Genus Protohermes van der Weele, 1907 (Megaloptera: Corydalidae: Corydalinae) from Thailand. Tropical Natural History. Supplement 8; 188-202. DOI: doi.org/10.58837/tnh.25.8.267194 [2025-10-14]

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[Entomology • 2021] Nevromus jeenthongi & N. aspoeck • The Dobsonfly Genus Nevromus Rambur, 1842 (Megaloptera: Corydalidae: Corydalinae) from Thailand, with Description of A New Species

Nevromus jeenthongi 

Piraonapicha, Jaitrong, Liu & Sangpradub, 2021.

 Tropical Natural History. 21(1)

. tci-thaijo.org/index.php/TNH

Abstract

Nevromus Rambur, 1842 is a megalopteran genus belonging to the family Corydalidae, and endemic to the Oriental faunal region. The Thai species of Nevromus are herein revised to include two species: Nevromus aspoeck Liu, Hayashi & Yang, 2012, and Nevromus jeenthongi sp. nov. The larval and pupal stages of N. aspoeck are described here for the first time. Nevromus jeenthongi sp. nov. appears to be closely related to N. aspoeck but differs from the latter species the occiput without black spots, the broader posterolateral lobes of male ninth sternum, and the fused male tenth gonocoxite strongly concaved along dorsal outline. Both species inhabit clean, clear flowing streams. The geographical distribution of Nevromus is updated with first records of this genus from the Malay Peninsula and Myanmar. A key to species of the genus based on male is provided.

Keywords: Nevromus, COI, stage association, new species, Thailand

Nevromus jeenthongi sp. nov., dorsal view.
A. male (Holotype, THNHM-I-21545); B. female (Paratype, THNHM-I-2008-0304). Scale bars: 1.00 cm

Nevromus jeenthongi sp. nov., living female, lateral view (Photo W. Zhang)

Nevromus jeenthongi sp. nov.

Diagnosis.— Head yellow to yellowish brown; occiput yellow without black markings; pronotum with two pairs of small black markings near lateral margins of pronotum in both sexes. Male ectoproct flatly foliate with a long and digitiform apex, fused tenth gonocoxites in ventral view strongly curved dorsad; ninth sternum with the posterolateral lobes broad, reaching to the lateral margin of ninth tergum.

Etymology.— The species epithet is dedicated to Mr. Tadsanai Jeenthong (National Science Museum, Thailand), who donated the holotype to THNHM.

Distribution.— Thailand (Surat Thani and Nakhon Si Thammarat Provinces); Myanmar (Tenasserim).

Nevromus aspoeck, larva in dorsal view.

Nevromus aspoeck, living male, lateral view.

Nevromus aspoeck Liu, Hayashi & Yang, 2012

Nevromus aspoeck Liu, Hayashi & Yang, 2012: 661. 

Type locality: China (Yunnan: Xishuangbanna).

Distribution.— Cambodia (Pursat  Province), China (Yunnan Province), Thailand (Chiang Mai, Mae Hong Son, Nan, Nakhon Ratchasima and Nakhon Nayok Provinces) (Fig. 17).

Kanyakorn Piraonapicha , Weeyawat Jaitrong, Xingyue Liu and Narumon Sangpradub. 2021. The Dobsonfly Genus Nevromus Rambur, 1842 (Megaloptera: Corydalidae: Corydalinae) from Thailand, with Description of A New Species. Tropical Natural History. 21(1); 94-118. tci-thaijo.org/index.php/TNH/article/view/248144

[Entomology • 2020] Indosialis bannaensis & I. siamensis • The Alderfly Genus Indosialis Lestage, 1927 (Megaloptera: Sialidae) in Thailand and Laos

Indosialis bannaensis Liu, Yang & Hayashi, 2006

in Piraonapicha, Sangpradub, Jaitrong & Liu, 2020.

  DOI: 10.11646/zootaxa.4786.2.5
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Abstract

Indosialis Lestage, 1927 is a small and rare megalopteran genus belonging to the family Sialidae and endemic to the Oriental region. The Thai and Lao species of Indosialis are herein revised by an integrative approach combining morphological and molecular evidence, including two species: Indosialis bannaensis Liu, Yang & Hayashi, 2006 and Indosialis siamensis sp. nov. The pupal stage of Indosialis is reported here for the first time. Indosialis siamensis sp. nov. can be distinguished from its congeners by 1) the brown head and prothorax (orange in congeners); 2) the apical tooth of right mandible in male sharply angulated (truncate or almost absent in congeners); and 3) the distinct sac-like structure present in male genitalia (indistinct or absent in congeners). The new species coexists with I. bannaensis in Loei Province, northeastern Thailand. Both species inhabit slow-flowing or sluggish streams that are usually covered by Colocasia esculenta (L.) Schott (Araceae).

Keywords: Megaloptera, Indosialis, Sialidae, new species, molecular identification, Southeast Asia

Indosialis bannaensis Liu, Yang & Hayashi, 2006

Kanyakorn Piraonapicha, Narumon Sangpradub, Weeyawat Jaitrong and Xingyue Liu. 2020. The Alderfly Genus Indosialis Lestage, 1927 (Megaloptera: Sialidae) in Thailand and Laos, with A Description of A New Species. Zootaxa. 4786(2); 233–253. DOI: 10.11646/zootaxa.4786.2.5
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Liu, X.Y., Yang, D. & Hayashi, F. 2006. Discovery of Indosialis from China, with description of one new species (Megaloptera: Sialidae). Zootaxa. 1300(1), 31–35. DOI:  10.11646/zootaxa.1300.1.2

[Entomology • 2017] Protohermes burmanus • New Species and Records of Corydalidae (Insecta: Megaloptera) from Myanmar

Protohermes burmanus  Liu & Dvorak, 2017

   DOI:  10.11646/zootaxa.4306.3.9 

Abstract

Seven species of the family Corydalidae (Insecta: Megaloptera) are newly recorded from Myanmar, including a new species of the dobsonfly genus Protohermes van der Weele, 1907, Protohermes burmanus sp. nov. A total of 18 species of Megaloptera are now known from Myanmar.

Keywords: Megaloptera, Corydalinae, Chauliodinae, Protohermes, taxonomy, Burma

 Xingyue Liu and Libor Dvorak. 2017. New Species and Records of Corydalidae (Insecta: Megaloptera) from Myanmar. Zootaxa. 4306(3); 428–436. DOI:  10.11646/zootaxa.4306.3.9